diff --git a/protocols/isis/packet/tlv_extended_is_reachability.go b/protocols/isis/packet/tlv_extended_is_reachability.go
index 19b916d6e3e89588e3be9986bcbc49e67c2f4c4e..721b239f2732c0ed93ded83f2872ed82f569cb1c 100644
--- a/protocols/isis/packet/tlv_extended_is_reachability.go
+++ b/protocols/isis/packet/tlv_extended_is_reachability.go
@@ -54,7 +54,6 @@ func (e *ExtendedISReachabilityTLV) AddNeighbor(n *ExtendedISReachabilityNeighbo
 
 // Serialize serializes an ExtendedISReachabilityTLV
 func (e *ExtendedISReachabilityTLV) Serialize(buf *bytes.Buffer) {
-	//e.updateLength()
 	buf.WriteByte(e.TLVType)
 	buf.WriteByte(e.TLVLength)
 	for i := range e.Neighbors {